Oracle Application Express(APEX),最早叫Oracle HTML DB，一个以Oracle数据库为中心，来开发Web应用的快速开发工具。

Architectural Overview

主要组件：

1.Application Builder用于构建web applications

2.SQL Workshop用于创建和管理数据库对象

APEX的历史

Installation

APEX is currently supported on on 10.1 and higher. The 11.x version of the database automatically installs Application Express by default.
Schema:APEX_xxxxxx

How to Install and De-Install: Note 1086415.1 - Master Note for Oracle Application Express (APEX) Installation

Reference:http://www.oracle.com/technetwork/developer-tools/apex/overview/apex-overview-157752.ppt

http://en.wikipedia.org/wiki/Oracle_Application_Express

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Why use Oracle Application Express for web app?